Officials in several states started warning families this week that funding for the popular Children’s Health Insurance Program (CHIP) is about to run out.

The joint state-federal health plan designed to help uninsured children from low-income households was not renewed by Congress, and, as NBC News reports, for many families that may mean an end to their children’s health coverage.

“I would say most families, their children will go without insurance,” said Linda Nablo, chief deputy director at Virginia’s Department of Medical Assistance Services.

A resolution passed by Congress last week keeps the federal government open for business until Dec. 22 and included a patch for CHIP, but that was just to move money from states that have not yet run out of cash to states whose CHIP programs were about to go broke.